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150420864 = 27311149239
BaseRepresentation
bin10001111011100…
…11110110000000
3101111001011122010
420331303312000
5302001431424
622532012520
73504361536
oct1075636600
9344034563
10150420864
11779aa470
1242461140
1325218639
1415d98156
15d314229
hex8f73d80

150420864 has 128 divisors (see below), whose sum is σ = 440640000. Its totient is φ = 45086720.

The previous prime is 150420863. The next prime is 150420877. The reversal of 150420864 is 468024051.

150420864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150420863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 629257 + ... + 629495.

It is an arithmetic number, because the mean of its divisors is an integer number (3442500).

Almost surely, 2150420864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 150420864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220320000).

150420864 is an abundant number, since it is smaller than the sum of its proper divisors (290219136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

150420864 is a wasteful number, since it uses less digits than its factorization.

150420864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 150420864 is about 12264.6183797132. The cubic root of 150420864 is about 531.8257480458.

The spelling of 150420864 in words is "one hundred fifty million, four hundred twenty thousand, eight hundred sixty-four".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 64 66 88 96 128 132 149 176 192 239 264 298 352 384 447 478 528 596 704 717 894 956 1056 1192 1408 1434 1639 1788 1912 2112 2384 2629 2868 3278 3576 3824 4224 4768 4917 5258 5736 6556 7152 7648 7887 9536 9834 10516 11472 13112 14304 15296 15774 19072 19668 21032 22944 26224 28608 30592 31548 35611 39336 42064 45888 52448 57216 63096 71222 78672 84128 91776 104896 106833 126192 142444 157344 168256 209792 213666 252384 284888 314688 336512 391721 427332 504768 569776 629376 783442 854664 1009536 1139552 1175163 1566884 1709328 2279104 2350326 3133768 3418656 4558208 4700652 6267536 6837312 9401304 12535072 13674624 18802608 25070144 37605216 50140288 75210432 150420864